NPCs composing that spawngroup :

a_swirling_dervish (100%)

NPCs spawning around that spawngroup :
(Max range : 100)

thundercrest_monocle_338, range=69 (-500,-455,112)

a_Dirtdigger_adept (100%)

thundercrest_monocle_2_109, range=51 (-548,-545,119)

a_clay_sentinel (100%)

thundercrest_monocle_4_116, range=69 (-500,-455,111)

a_Dirtdigger_bonecracker (100%)

thundercrest_monocle_4_118, range=51 (-548,-545,119)

an_earthen_sentinel (100%)

thundercrest_monocle_5_35, range=51 (-548,-545,119)

a_mud_sentinel (100%)

thundercrest_monocle_5_159, range=92 (-491,-558,327)

an_Isle_defender (100%)

thundercrest_monocle_7_7, range=51 (-548,-545,119)

a_clay_sentinel (100%)

thundercrest_monocle_7_118, range=69 (-500,-455,111)

a_Dirtdigger_bonecracker (100%)

thundercrest_monocle_8_30, range=51 (-548,-545,119)

a_mud_sentinel (100%)

thundercrest_monocle_8_150, range=97 (-461,-495,113)

a_swirling_dervish (100%)

thundercrest_monocle_9_108, range=96 (-462,-495,113)

a_swirling_dervish (100%)

thundercrest_monocle_9_116, range=69 (-500,-455,111)

a_Dirtdigger_spinebuster (100%)

thundercrest_monocle_9_117, range=51 (-548,-545,119)

a_clay_sentinel (100%)

thundercrest_monocle_12_183, range=68 (-491,-478,319)

an_Isle_rejuvenator (100%)

thundercrest_287900, range=51 (-548,-545,119)

thundercrest_287902, range=69 (-500,-455,111)